Earth Fault Loop Impedance Test - 3 Lead Low or 2 Lead High - Test Explained

In this video Marcus explains what happens when we would set our MFT tester to 3 lead low, 2 lead high and even 2 lead low in order to carryout an earth fault loop impedance on a circuit that has RCD protection. So we can carryout a earth fault loop impedance test it is important to select the correct setting on an MFT tester but do you understand why we often select 3 lead low setting when testing for earth fault loop impedance...

== 🕐 Time Stamps - Cut to the action 🕕 ==

00:00 - Earth fault loop impedance test
00:05 - Eric is doing work experience
00:35 - Set to 3 lead low
01:05 - 2 lead high test for earth fault loop impedance
01:34 - 3 lead low test for earth fault loop impedance
02:08 - 2 lead low test for earth fault loop impedance
03:09 - Recap learning with Eric

Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2, 3 plus AM2, AM2S and AM2E.

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